JPH0725430B2 - A device that locks the suction nozzle of the separated soccer to the suction head of the sheet feeder. - Google Patents

Abstract

Device for locking a suction nozzle of a separating sucker on a suction head of a sheet feeder of a sheet-processing machine, the suction head having at least one governor foot, a drive device for moving the governor foot in accordance with a working cycle of the feeder, and a device for vertically moving the nozzle of the separating sucker, includes a bearing support laterally disposed on the suction nozzle, a movably arranged abutment device for supporting the bearing support, when the suction nozzle is in a lifted position, until a trailing edge of a sheet supplied to the feeder has left the vicinity of the suction nozzle of the separating sucker, and a linkage connecting the abutment device articulatingly to the drive device for the governor foot for moving the abutment in accordance with a working cycle of the suction head.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for locking a suction nozzle of a separating sucker onto a suction head of a sheet feeding table of a sheet processing machine, the suction head comprising:
The vertical movement of the suction nozzle has at least one tactile foot capable of moving toward and away from the trailing edge of the uppermost sheet of the sheet pile in accordance with the work cycle of the sheet feeding table. Performed by a suction aerodynamic force and a spring force against the suction aerodynamic force to separate the sheets from the sheet pile, and the suction nozzle has a bearing arranged on the side, Moreover, until the trailing edge of the sheet conveyed to the sheet feeding table leaves the suction nozzle area of the separation sucker, the supporting portion is supported by the movably arranged support at the suction nozzle lifting position. It is about the format that it is designed to do.

[0002]

2. Description of the Related Art A locking device of the above type is described in West German Patent No. 2.
It is known from US Pat. No. 3,090,131, and is applied when so-called spring soccer is used as the separating soccer and special drive means for raising and lowering the separating soccer are omitted. In the known construction, the suction head is provided with a lever pivotably mounted about a horizontal axis, the lever having a cam follower roller cooperating with a control cam, and at its free end, It has a horizontal bar that holds the separation nozzle high. A roller mounted on the end of the cross bar forms a bearing, and the roller cooperates with a horizontally extending flange at the suction nozzle of the separating football. Therefore, the means for locking the suction nozzle of the separating sucker has a special drive equipped with its own control cam, by means of which the suction nozzle of the separating sucker is fed to the sheet feed tray. When the trailing edge leaves the working area of the suction nozzle of the separating football, it is forced downwards.

A device for locking the suction nozzle of a separating football performing an oscillating movement on the suction head of a sheet feeding table is known from German Patent 891,267, in which case the separation is performed. On the football, a locking pawl in the form of a double lever is pivotably mounted, one arm of the double lever having a counter for a projection on the suction nozzle and the other. The arm cooperates with a stopper arranged on the sheet pile tactile. Since the separation soccer is configured as a spring soccer, the suction nozzle in the rearward turning position attracts the uppermost sheet of the sheet pile and then jumps up, and then the corresponding support of the locking claw of the suction nozzle protrudes. It engages the back surface and holds the suction nozzle fixedly in the upper position. This holding action continues until the trailing edge of the sheet conveyed to the paper feed table leaves the working area of the suction nozzle that has been supplied with air. When the separating football, which swings on the sheet feeding track together with the suction nozzle, returns to the rear end position, the stoppers arranged on the sheet pile tactiles unlock and the suction nozzle descends downward. To do.

[0004]

SUMMARY OF THE INVENTION The object of the invention is to improve the mechanism for locking the separating football, which is designed as a spring football, in the upper end position, and to provide a tactile foot mounted on the trailing edge of the sheet pile. Along with this, the suction nozzle of the suction head is configured to be released in a forced control manner in accordance with the working cycle of the machine.

[0005]

According to the construction means of the present invention for solving the above-mentioned problems, the counter support is pivotally connected to a link for transmitting a driving force to the tentacle and is based on the pivotal connection. It is movable according to the working cycle of the suction head.

In an advantageous configuration, the counter-bearing is configured on the slide body, which slide body is movably mounted on the joint pin of the toggle lever-like joint between the tactile drive members, and Is guided so as to be pivotable about a fixed fulcrum fixed to the casing of the suction head and slidable linearly in a tangential direction with respect to the axis of the joint along a pin fixed to the casing.

With this arrangement, no additional drive is required and no additional control is required to lock the separating football in the raised position.
The counter-bearing is forcibly moved together with the tactile foot, and the bearing on the suction nozzle is released only when the next sheet has to be lifted from the sheet pile. When released, the suction nozzle of the separating football descends downwards, aided by its own weight and, in some cases, by the spring force, then under the action of the negative pressure of the separating football, it springs up again to its upper end position. .

Further advantageous constituent elements of the invention are as described in claims 3-8.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

The embodiment shows a suction head in which the tactile foot 1 is mounted on the trailing edge of the uppermost sheet 2 of a sheet pile 3 in accordance with the work cycle of the paper feed tray and is lift-ended. It is returned to the position and turned. To this end, the tactile foot 1 is pivotally attached to the free end of one lever arm 4a of the double lever 4 and also to the guide lever 5, whereby the double lever 4 and the guide lever 5 are attached. Are supported in a suction head casing 8 so as to be pivotable about shafts 6 and 7 extending in a transverse direction at right angles to the conveying direction.
Are reciprocally turned from the position shown by the solid line to the position shown by the chain line, and then forwardly turned again. The other lever arm 4b of the double lever 4 is pivotally connected to one end of a connecting rod 9 for driving, and the other end of the connecting rod 9 has a roller whose one end is pivotally supported by the casing 8. It is pivotally attached to the lever 10. The roller-equipped lever 10 supports a cam driven roller 11, which is engaged with the other end of the roller-equipped lever 10 by a spring 1.
2, the pressure is applied to the peripheral surface of the driven cam disk 13. Therefore, the cam disk 13 controls the movement of the tactile foot 1 according to the working cycle of the suction head. A fork-shaped sliding body 15 is swivelable on a joint pin 14 of a joint that acts like a toggle lever between the connecting rod 9 and one lever arm 4b of the double lever 4, and the sliding body is movable. Is the slide guide groove 1 formed in this.
A blowing pipe 1 fixedly arranged in a casing 8 via 6 for supplying blowing air to a paper separating blower or the like.
7, the slide body 15 moves forward / backward together with the slide guide groove 1 from the position shown by the solid line in FIG. 1 to the position shown by the chain line in synchronization with the tactile foot 1.

The separation soccer 18 is constructed as a spring soccer and is attached to the casing 8. When the internal pressure reaches atmospheric pressure, the lower part of the spring sucker provided with the suction nozzle 19 falls to the lower end position by its own weight and, in some cases, with the assistance of an internal spring schematically shown in FIG. The nozzles 19 rest on the topmost sheet 2 of the sheet pile 3. When loaded with a negative pressure, the suction nozzle 19 jumps up to the upper end position, and accordingly, from the sheet pile 3 to the uppermost sheet 2.
Lift the rear end of the. At this time, the tentacle 1 is swung backward to the position shown by the chain line. The transport football, not shown, now receives the lifted topmost sheet 2 and conveys it towards the feed tray. At the same time, the tentacle 1 is returned to the solid line position and the sliding body 15 is also swung to the solid line position. At that time, the corresponding receiver 20 fixed to the sliding body 15 engages with the lower surface of the support portion 21 arranged on the side surface of the suction nozzle 19. As a result, the suction nozzle 19 is locked in the upper position, so that even if the negative pressure disappears in the suction nozzle, the suction nozzle does not return to the lower position and fall. In that case, the tentacle 1 is in a state of being swung to the position shown by the solid line. Then, the tactile foot 1 returns to the chain line position and swivels, and at the same time, the sliding body 15 releases the support portion 21 of the suction nozzle 19 with the corresponding support 20 fixed thereto, so that the suction nozzle is also shown by the chain line. It returns to the lower end position and falls,
Moreover, a negative pressure can be applied again in order to lift the next sheet from the sheet pile 3.

FIG. 2 shows the arrangement of the separated soccer pairs, which can be arranged symmetrically with respect to the longitudinal center plane of the machine with a mutual spacing.
Also as can be seen from this figure, a conventional guide spring 22 is provided, which prevents rotation of the suction nozzle of the separating sucker and marks the lower end position for the suction nozzle.

In the embodiment shown in FIGS. 3 and 4, the tactile foot 1
The arrangement and configuration of the device and the driving means for the tactile foot correspond to the description of the embodiment shown in FIGS. In order to lock the separating football with the associated suction nozzle 19 in the upper position, a leaf spring 23 is provided as a counter for the bearing 21, unlike the embodiment of FIGS. 1 and 2. The leaf spring extends downwardly alongside the separating football 18 and along the housing 8 of the football head. As seen from a side view, the nose-shaped molded portion of the leaf spring 23 engages through the cutout portion of the metal thin plate 24, and forms a corresponding support for the bearing portion provided on the suction nozzle 19 of the separation soccer 18. There is. The engagement position between the corresponding support and the support portion shown by the solid line in the drawing corresponds to the relaxed state of the leaf spring 23. Disengagement lever 2 to unlock
5 is provided, the disengagement lever engages the molded part of the leaf spring 23 at one end, and the other end of the disengagement lever is fixed to the swivel shaft 26. , Is connected to the lever 10 with rollers via the turning lever 27 and the connecting bar 28. As a result, the pivoting movement of the lever with roller to the right when the tactile foot 1 is lifted from the trailing edge of the sheet pile causes a reverse pivoting movement of the dissociation lever, so that the dissociation lever forms a corresponding receiver. The nose-shaped molding of the leaf spring present is pulled out of the bearing area of the suction nozzle 19 so that the suction nozzle can drop to the lower position. The tentacle 1
As soon as the blade spring returns to the position indicated by the chain line and begins to turn, the leaf spring relaxes and returns to the standby position for exerting the locking action. For this reason, since the nose-shaped molding portion of the leaf spring has an inclined sliding surface, the support portion 21 elastically deforms the leaf spring 23 and slides along the leaf spring, so that the suction nozzle 19 of the suction nozzle 19 moves. The upper end position can be reached. The swivel shaft 26 is pivotally supported in a tube 29 for double-sided construction, as in the embodiment of FIG. 2, which is connected to the suction head casing 8 at one or more points. And has a slit-shaped notch on the pipe circumference,
A swivel lever 2 connected to the swivel shaft 26 in the notch.
7 engage.

[Brief description of drawings]

FIG. 1 is a side view of a first embodiment of a locking device according to the present invention.

2 is a rear view of the locking device shown in FIG. 1. FIG.

FIG. 3 is a side view of a second embodiment of the locking device according to the present invention.

FIG. 4 is a rear view of the locking device shown in FIG.

[Explanation of symbols]

1 tactile foot, 2 topmost sheet, 3 sheet pile, 4 double lever, 4a one lever arm, 4b other lever arm, 5 guide lever, 6, 7 axis, 8 casing, 9 connecting rod, 10 Lever with roller, 11 Cam driven roller, 12 Spring, 13 Cam disc,
14 joint pin, 15 sliding body, 16
Slide guide groove, 17 Blowing pipe, 18
Separation Soccer, 19 Suction Nozzle, 20
Corresponding support, 21 bearing portion, 22 guide spring, 23 leaf spring, 24 thin metal plate, 25 disengagement lever, 26 swivel shaft, 27 swivel lever,
28 connecting bars, 29 tubes

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Publication Sho 53-23589 (JP, B2) West German Patent 891267 (DE, B)

Claims (8)

[Claims] A 1. A sheet-fed processing machine feeding table device for locking the suction nozzle of separation football suction head of the suction head, in accordance with the sheet feeding table of the work cycle, sheets After the top sheet of the paper pile
At least one tactile foot capable of moving toward and away from the edge, and the vertical movement of the suction nozzle is such that the sheet pile to the sheet is moved .
Suction air force to separate the paper and the suction air
The suction nozzle has a support portion arranged on the side surface, and the trailing edge of the sheet conveyed to the sheet feeding table is a separation soccer. until leaving the suction nozzle field, the bearing at the raised position of the suction nozzle, format adapted to support the corresponding received arranged in movable
The Oite, receiving the corresponding (20), Sawaashi (1) for transmitting the driving force to the link (9,4,14) and the suction head on the basis of which and該枢adhesive bond is pivotably connected A device that locks the suction nozzle of the separation soccer to the suction head of the sheet feeding table, which is movable according to the work cycle. 2. Corresponding receptacle (20) is formed on a sliding body (15), said sliding body being a joint of a toggle lever-like joint between drive members (9, 4) for a tactile foot (1). A fixed fulcrum movably supported on the pin (14) and fixed to the suction head casing (8).
It is possible to turn around (6) and it is fixed to the casing.
2. The locking device according to claim 1, wherein the locking device is linearly slidably guided tangentially to the axis of the joint along a defined pin (17) . 3. The sliding body (15) has a fork shape and a slide guide groove (16) between the fork leg pieces surrounds a pin (17) fixed to the suction head casing. 2. The lock device described in 2. 4. Joint of toggle lever-like joint
The pin (14) and the flap provided on the joint pin
The swivel bearing of the oak-shaped slide body (15) is
Relative to the central axis of the sliding direction of the ride guide groove (16)
The locking device according to claim 3, wherein the locking device is arranged at the center. 5. The bearing (21) is a suction nozzle (1).
9. Locking device according to claim 1, characterized in that the corresponding receptacle (20) is plate-shaped on the slide body (15). 6. A leaf spring (23) fixed to the suction head is provided as a counter receiver (20), said leaf spring cooperating with a disengagement lever (25) supported on the suction head, The dissociation lever is hinged to a drive member (10) for the tactile foot (1), and the tactile foot (1) is
2. Locking device according to claim 1, characterized in that the leaf spring (23) releases the bearing (21) of the suction nozzle (19) during the return swivel. 7. The dissociation lever (25) is configured in a two-arm shape, and one arm of the dissociation lever is a turning lever (27).
7. Locking device according to claim 6, which is hinged to the drive member (10) of the tactile foot (1) and whose other arm acts on the leaf spring (23). 8. A lock according to claim 3, wherein the pin partially surrounded by the slide guide groove (16) is constituted by a blow-in pipe (17) for supplying blown air to the paper separating blower. apparatus.